UIFlippable.cs ArgumentOutOfRangeException

[SimonDarksideJ]

^{Issue created by <unknown> as Bitbucket Issue #​133 on 2017.04.07 23:56.}
I get this error when move to 5.6.

ArgumentOutOfRangeException: Argument is out of range.
Parameter name: index
System.Collections.Generic.List`1[UnityEngine.Vector2].get_Item (Int32 index) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/List.cs:633)
UnityEngine.UI.VertexHelper.PopulateUIVertex (UnityEngine.UIVertex& vertex, Int32 i) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Utility/VertexHelper.cs:65)
UnityEngine.UI.Extensions.UIFlippable.ModifyMesh (UnityEngine.UI.VertexHelper verts) (at Assets/unity-ui-extensions/Scripts/Effects/UIFlippable.cs:48)
UnityEngine.UI.Graphic.DoMeshGeneration () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Graphic.cs:388)
UnityEngine.UI.Graphic.UpdateGeometry () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Graphic.cs:374)
UnityEngine.UI.Graphic.Rebuild (CanvasUpdate update) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Graphic.cs:335)
UnityEngine.UI.CanvasUpdateRegistry.PerformUpdate () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/CanvasUpdateRegistry.cs:149)
UnityEngine.UI.ScrollRect:LateUpdate()

[SimonDarksideJ]

^{On 2017.04.10 20:17, Gustavo Bogarín commented:}
I have this problem too, the error appears in this line

                verts.PopulateUIVertex(ref uiVertex, i);

I couldn't find much information about that method so I'm stuck here, but what I can tell is that the array is empty because the exception is raised when the index is 0.

[SimonDarksideJ]

^{On 2017.04.13 13:14, @SimonDarksideJ commented:}
Seems that line should have a null check then. Looking in to it now.

[SimonDarksideJ]

^{On 2017.04.19 16:06, Gustavo Bogarín commented:}
Any news on this? verts ins't null apparently.

[SimonDarksideJ]

^{On 2017.04.19 16:28, @SimonDarksideJ commented:}
Looking into it amongst the other additions/fixes as part of the next update

[SimonDarksideJ]

^{On 2017.04.21 19:22, Gustavo Bogarín commented:}
I think I figured out how to solve it, apparently the problem isn't the script itself, but a combination of components, in my case it was the Outline placed above the Flippable, once I moved down the Outline the problem was gone, the component also modifies the mesh, so maybe it has to do with the order in which the events are being called. But this wasn't a problem in 5.5, something changed.

[SimonDarksideJ]

^{On 2017.07.02 15:36, @SimonDarksideJ commented:}
Fix for UIFlippable when used in combination with other BaseMeshEffects
Unity is very fussy about the order now, so script updated to ensure it's above other base mesh effects on Validate.
(can't solve for stupid if you reorder manually, so updating docs)

Resolves #133

Referenced by af1f9be

[SimonDarksideJ]

^{On 2017.07.02 15:36 @SimonDarksideJ modified issue:}
status changed new → resolved